TOUCH-DISPLAY CONTROL DEVICE AND PERSONAL DATA ASSISTANT

摘要

Provided are a touch display control device and an information terminal device, which are arranged so that the noise resulting from the actions for activation and display on a display panel, and the noise caused by the actions of activation and detection on a touch sensor never affects each other, and are useful for suppressing the elicitation of the difference in brightness attributed to non-display in a display frame.;The information terminal device includes: a display controller operable to change start timings of display and non-display periods in a cycle of a frame synchronizing signal of a display frame, in each cycle of the frame synchronizing signal or each sequence of cycles thereof; and a touch panel controller operable to perform the activation of a touch panel and a touch detection during the non-display period.

主权项

1. A touch display control device comprising:
a display controller operable to control the display of a display panel in synchronization with a frame synchronizing signal of a display frame; and a touch panel controller operable to activate a touch panel and perform a touch detection, wherein the display controller has a first control part operable to change start timings of display and non-display periods in a cycle of the frame synchronizing signal in each cycle of the frame synchronizing signal or each sequence of cycles thereof, and the touch panel controller has a second control part operable to perform activation of the touch panel and touch detection in the non-display period.